Abstract
The kinetic parameters (standard rate constant k o, transfer coefficient α and apparent diffusion coefficient D app) characterizing the heterogeneous electron-transfer process at electrode—film interfaces and the homogeneous charge-transport process within films for the one-electron reduction of the dication of viologen sites to the corresponding radical monocation at poly(alkyleneviologen) (PAV)/poly( p-styrenesulfonic acid) (PSS) polymer complex film-coated electrodes, where the viologen units of PAVs are joined by a varying number ( m: 3, 5, 6 or 8) of the spacer methylene groups, have been estimated by normal pulse voltammetry. It was found that D app, k o and α largely depend on m.
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